Filler disk for buffing machines



Feb. 16, 1954 P. A. BEACH FILLER msx FOR BUFFING MACHINES Filed May 3l, 1950 INVENTOR ATTORNEY Patented Feb. 16, 1954 UNITED STATES' PATENT. OFFICE FILLER DISK FOR BUFFING MACHINES Perry A. Beach, Rochester, Minn.

Application May 31, 1950, Serial No. 165,188

3 claims. (o1. 152ao) The invention relates to a disk construction, and more especially to a filler disk for rotary buffers used for surfacing purposes.

The primary object of the invention is the pro-l vision of a structure of this character, wherein" it affords an easy and efficient means of applying fillers to floors and large flat surfaces, filling the cracks, pits andpores of wood, leaving the` oor in a highly satisfactory condition for nishing. either with varnish or seal and wax.'

Another object of the invention is the provision of a structure of this character, wherein it is economical to operate as it possesses a minimum number of wearing parts, these being preferably made from red rubber belting and costing but a few cents to replace and lasting in service for several thousand feet of floor, the said -structure being adaptable for attachment to a floor or surfacing machine as a substitute for a polishing brush or steel wool disc, and is applicable to single or multiple disc machines of standard constructions.

A further object of the invention is the provision of a structure of this character, wherein its construction is such that it will draw sub' stantially all excess material to the center vand distribute it until it is used up in filling the cracks and pits .in the surface acted upon during the operation of the machine.

"A still further object of the invention is the provision of a structure of this character, wherein during operation the vanes of the disk through the weight of the machine and the rotation of said disk are forced to bend slightly'giving a wiping action similar to hand rubbing,.resulting finbulng the floor smooth and highly polished, ready forr either varnish, seals or waxes.

A still further object'of the invention` is the provision ofa structure of this character, which f is extremely simple in construction, thoroughly reliable and efficient in operation, strong, du-

rable, readily and easily attached and removed to and from a rotary bufiing machine, the wearing parts being conveniently replaceable with new parts, light in weight, and inexpensive to manu-` facture and install.

With these and other objects in view the invention consists in the features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawing, which discloses the preferred embodiment of the invention, and

as pointed out in the claims hereunto appended.

Inthe" accompanying drawing: Figure 1 is a plan view partly in section and Figure 2 is a sectional view with certain elel ments added taken on the line 2-2 of Figure 1, looking in the direction of the arrows.

Figure `3 is a fragmentary sectional View taken approximately on the line 3-3 of Figure 2, looking in the direction of the arrows.

Figure 4 is an elevation of one of the wiper elements of the structure.

Figure 5 is an elevation of another of the wiper elements.

' Similar reference characters indicate corresponding parts throughout the several views in the drawing.

Referring to the drawing in detail, A designates generally the disk structure in its entirety, constructed in accordance with the invention, comprising an annular rim I0 concentrically spaced from an innermost ring II used to connect a buiiing disc (not shown) to a surfacing machine (also not shown) of any standard construction, the ring I l serving as a hub to the disk structure forming the present invention. This ring II has a connection at I2 with a coupling element I3 for the surfacing machine, the details of such element I3 being of no importance yand need not be considered a part of the present invention.

Located between the rim I Il and the ring I I are spaced angle iron shaped spokes I4 which are disposed substantially tangentially to the said ring II, they being rigidly attached to both the rim and ring, respectively, assuring a rigid unitary structure as must be obvious from the drawing. The structure A in use travels at all times parallel with a floor and in contact with it through the wiping means hereinafter described, the pressure beneath being the same at any point but this pressure can be varied at the will of the operator by tilting the surfacing machine with its n handle (not shown).

The wiping means, each includes innermost and outermost sections or pieces I5 and I6, re-

versely through the plate I8 and the ange I1. The uppermost edges of the sections or pieces i5 and I are notched at 20 for clearing the said bolts. The section or piece I6 is of greater width than the section or piece l5, so that the lowerrnost edge 2| of the said section or piece i6 is disposed beyond the lowermost edge of the section or piece I5, as will clearly appear in Figure 3 of the drawing, yet these lowermost edges of both sections or pieces will slightly flex during the operation of the structure A, while the section or piece I6 is knife edged at 22, as will be obvious for positive wiping action.

The structure A is attached tothe, bufng ma.- chine, filler is applied to a floor with a mop or large brush, the floor is buil'ed aty once whilev the ller is wet, buiiing is continued until holes and.r

cracks are iilled, the floor is then cleaned and allowed to dry. The squeegee action and rubbing of the elements I6 is very efficient for filling the cracks in the floor and gives'the latter a smooth finish; also eliminates most of the hardl work and saves a good share Yof the time needed to lill cracks in the floor.

The sections or pieces [5i and I6 through the weight of the bufling machine and the rotation of the structure A are forced to bend slightly giving a wiping action similar to hand rubbing. It also has a very good action for bufling the floor surface smooth and highly polished ready for either varnish, seals or waxes.

What is claimed is:

l. A structure of the kind described, comprising: an inner annular ring forming a hub for a coupling element of a rotary builing machine, an outer annular rim concentricv to and spaced from the ring, angle iron shaped spokes rigidly connected to said ring and rim therebetween with the spokes disposed substantiallyV tangentially to said ring, clamping means, and' `pliable side-byside wiping and stiffener elements detachably secured to one of the Vsides of each of` said angle spokes by the clamping means, each of said wiping and stiiener elements and sides being in parallel planes and substantially perpendicular to the plane of said rim,Y said wiping element being larger than said stiifener' element whereby the lowermost edge of' the wiping element Vis disposed beyond the lowermost edge of saidstiffener element but being arranged so that the lowermost edges of both elements will flex during operation to provide a positive wiping4 action, the sides of the angle iron shapedv spokes and the wiping and stifener elements carried thereby lying `in vertical planes, each series. of stiifener and wiping elements being tangential to said inner hub, whereby each wiping lower surface thereof is adapted to engage thev floor to be surfaced to distribute material, in the cracks, ,and pits` in. the iioor as said wiping element rotatably engages said iioor.

2. A structure of the kind described, comprising: an inner annular ring forming a hub for a coupling element of a rotary bufng machine, an.

outer annular rim concentric to and spaced from the ring, angle iron shaped spokes rigidly connected to said ring and rim therebetween with the spokes disposed substantially tangentially to said ring, clamping means, and pliable side-byside wiping and stiiener elements detachably secured to one of the sides of each of said angle spokes by the clamping `means, each of said wiping and stiiener elements and sides being in parallel planes and substantially perpendicular to the plane of' said rim, said wiping element being larger than said stiiener element whereby the lowermost edge of the wiping element is disposed beyond the lowermost edge of said stiffener element but being arranged so that the lowermost edges of both elements will ex during operation to provide. a positive wiping action, said clamping means including a plate and a plurality of nutcarryi-ng bolts extending through a spoke and plate whereby to retain said wiping and stiffener elementsbetween said plate and spoke.

3'. A4 structure of the kind described-comprising: an inner annularV ring, 'formi-ng a hubfor a coupling elementcof a rotary hurling machine; an outer annular' rim concentric `to and spacedffrom the" ring, angle iron shaped spokes `rigidly connected to said `ring and rim therebetween with the spokes. disposed: substantially tangentially to said 'ring'r clamping means, and pliable side-byside wiping and stiffener elements" detac'hably secured tov one ofv the sidesv of each `of said angle spokes by the clamping means, each of said wiping. and stiilenerl elements and sides being in parallel planes. and substantially perpendicular tothe plane lof saidr `rim, said wiping element being larger than'said stiften-er element. whereby the l'owermost .edge `of kthe wiping element is disposed beyond the lcwermost edge of said'fstiiiener element but being arranged so that they lowerinost` edges of both elements will flex during operation to provide, a positive` wiping action, said clamping means including a. plate and aplurality of nut-carrying bol't's extending through a spoke and ,plate whereby to' retain said 'wiping and stiiener elements between said plate and spoke, said wiping. and stiffener elements having notches,L each notch being adapted: to' partially lsurround a bolt when sai'dl wiping and vstiffener elements are in place. Y

PERl'iFiI A. BEACH.

References titedA inthe. illey of this patent UNITED STATES PATENTS Number Name Date. 2|.',I`25JZ5L1y Smith l Jan.. 19 19.15 1,346,643 Espeland i.- i July 13, 1920 1,688,318 Dittmar. Oct/23, 1928 1,882,769 Buggy.. L.- Oct'. 18 19,32 *1,897,726 rHill'yard -Feb 1.4 1933 2,277,389 Conway ,Mar`. 24,1942

FGREIGN PATENTS Number l Country Date 495,588 Great Britain NOV. '16 1938 

